> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-generated-reference-full-stack-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ContractFilter

> This class contains utilities to decode a CreatedEvent and create an UpdateFormat, a TransactionFormat or a EventFormat by provided parties. It can only be instantiated with a subtype of ContractCompanion

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  <p class="x2mdx-ref-eyebrow">com.daml.ledger.javaapi.data</p>

  <h1 class="x2mdx-ref-title">ContractFilter</h1>

  <p class="x2mdx-ref-summary">This class contains utilities to decode a CreatedEvent and create an UpdateFormat, a TransactionFormat or a EventFormat by provided parties. It can only be instantiated with a subtype of ContractCompanion</p>

  <div class="x2mdx-ref-badges">
    <span class="x2mdx-ref-badge x2mdx-ref-badge--protocol">Java</span>

    <a class="x2mdx-ref-badge x2mdx-ref-badge--added" href="#history-added-3-4-8">Added 3.4.8</a>
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      <dt>Package</dt>
      <dd>com.daml.ledger.javaapi.data</dd>
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    <div class="x2mdx-ref-meta-item">
      <dt>Upstream docs</dt>
      <dd><a href="https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html">Open Javadoc</a></dd>
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  </dl>
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## Signature

```java theme={null}
public final class ContractFilter<Ct> extends Object
```

## Members

| Member                                                 | Lifecycle     | Upstream docs                                                                                                                                                                                                                           |
| ------------------------------------------------------ | ------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `eventFormat(Optional<Set<String>>)`                   | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#eventFormat%28java.util.Optional%29)                                                                                       |
| `of(ContractCompanion<Ct, ?, ?>)`                      | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#of%28com.daml.ledger.javaapi.data.codegen.ContractCompanion%29)                                                            |
| `of(InterfaceCompanion<?, Cid, View>)`                 | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#of%28com.daml.ledger.javaapi.data.codegen.InterfaceCompanion%29)                                                           |
| `toContract(CreatedEvent)`                             | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#toContract%28com.daml.ledger.javaapi.data.CreatedEvent%29)                                                                 |
| `toContract(CreatedEvent, UnknownTrailingFieldPolicy)` | Added `3.5.1` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#toContract%28com.daml.ledger.javaapi.data.CreatedEvent,com.daml.ledger.javaapi.data.codegen.UnknownTrailingFieldPolicy%29) |
| `transactionFormat(Optional<Set<String>>)`             | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#transactionFormat%28java.util.Optional%29)                                                                                 |
| `updateFormat(Optional<Set<String>>)`                  | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#updateFormat%28java.util.Optional%29)                                                                                      |
| `withIncludeCreatedEventBlob(boolean)`                 | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#withIncludeCreatedEventBlob%28boolean%29)                                                                                  |
| `withTransactionShape(TransactionShape)`               | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#withTransactionShape%28com.daml.ledger.javaapi.data.TransactionShape%29)                                                   |
| `withVerbose(boolean)`                                 | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/ContractFilter.html#withVerbose%28boolean%29)                                                                                                  |

## History

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  <div class="x2mdx-ref-history-event x2mdx-ref-history-event--introduced" id="history-added-3-4-8">
    <div class="x2mdx-ref-history-event-head">
      <span class="x2mdx-ref-history-event-label">Added</span>
      <code class="x2mdx-ref-history-event-version">3.4.8</code>
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  </div>
</div>